Some researchers are studying how to adapt radar technology, which has been used for years to catch highway speeders and in weather forecasting, to applications for assisted living. Others are testing the 3-D sensors used in gaming systems like the Xbox to develop nonintrusive alert systems.
The goal with the elderly is to detect a fall without disturbing them unless they have just fallen. "The whole idea is you cannot have visual access to inside," says Moeness Amin, director of the Center for Advanced Communications at Villanova University.
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